from tkinter import *
print ("Введите начальную координату X: ")
X = int(input())
print ("Введите начальную координату Y: ")
Y = int(input())
print ("Введите коэффициент увеличения N: ")
N = int(input())
 
coords= [0, 0,
         10, 0,
         10, 10,
         20, 10,
         20, 30,
         10, 30,
         10, 20,
         0, 20]
if N == 0 and X>=0 and X<=500 and Y>=0 and Y<=500:
  pass	
elif  N > 0 and 0*N+X>=0 and 0*N+Y>=0 and 20*N+X<=500 and 20*N+Y<=500:
  pass
elif  N < 0 and 20*N+X>=0 and 20*N+Y>=0 and 0*N+X<=500 and 0*N+Y<=500:
  pass
else:
    print("Размер фигуры превышает максимальный размер поля")
    exit()

root=Tk()
root.title("ИТ-марафон")
root.geometry("500x500")

canvas=Canvas (bg="white", width=500, height=500)
canvas.pack (anchor=CENTER, expand=1)
canvas.create_polygon (coords[0] *N+X, coords[1] *N+Y,
			coords[2] *N+X, coords[3] *N+Y,
			coords[4] *N+X, coords[5] *N+Y,
			coords[6] *N+X, coords[7] *N+Y,
			coords[8] *N+X, coords[9] *N+Y,
			coords[10] *N+X, coords[11] *N+Y,
                       coords[12] *N+X, coords[13] *N+Y,
			coords[14] *N+X, coords[15] *N+Y,
                       fill="magenta")

root.mainloop()
